Reliable Operation of Turbomachinery Through Bearing Upgrades

• 作者: Jongsoo Kim
• 来源期刊: 风机技术
• 年，卷（期）: 2021,（4）
• 所属期刊栏目: Bearing and Seal
• 页码范围: 39-48
• 页数: 10页
• 语种: 中文
• DOI: 10.16492/j.fjjs.2021.04.0005

摘要

Common fluid film bearing issues (mainly high bearing temperature) preventing reliable operation of turbomachinery will be addressed. A theoretical review of radial and thrust bearing performance will be included for a basic understanding on how to handle the bearing issues. Some theoretical plots will be presented to demonstrate the effect of key bearing design parameters on bearing performance. Advanced bearing materials beyond babbitt will also be introduced as bearing upgrade options to overcome bearing issues. Case studies on radial and thrust bearing upgrades to mitigate or eliminate the bearing issues will be shared. Some of the common vibration problems preventing reliable operation of turbomachinery will also be described with suggestions on how to eliminate or mitigate the problems via changes to bearing design features or new bearing technology. A couple of case studies representing each vibration problem will be presented.